Author: Latest Results

Assessing the Performance of a Dynamical Downscaling Simulation Driven by a Bias-Corrected CMIP6 Dataset for Asian Climate

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Abstract

In this study, we aim to assess dynamical downscaling simulations by utilizing a novel bias-corrected global climate model (GCM) data to drive a regional climate model (RCM) over the Asia-western North Pacific region. Three simulations were conducted with a 25-km grid spacing for the period 1980–2014. The first simulation (WRF_ERA5) was driven by the European Centre for Medium-Range Weather Forecasts Reanalysis 5 (ERA5) dataset and served as the validation dataset. The original GCM dataset (MPI-ESM1-2-HR model) was used to drive the second simulation (WRF_GCM), while the third simulation (WRF_GCMbc) was driven by the bias-corrected GCM dataset. The bias-corrected GCM data has an ERA5-based mean and interannual variance and long-term trends derived from the ensemble mean of 18 CMIP6 models. Results demonstrate that the WRFGCMbc significantly reduced the root-mean-square errors (RMSEs) of the climatological mean of downscaled variables, including temperature, precipitation, snow, wind, relative humidity, and planetary boundary layer height by 50%–90% compared to the WRF_GCM. Similarly, the RMSEs of interannual-to-interdecadal variances of downscaled variables were reduced by 30%–60%. Furthermore, the WRFGCMbc better captured the annual cycle of the monsoon circulation and intraseasonal and day-to-day variabilities. The leading empirical orthogonal function (EOF) shows a monopole precipitation mode in the WRFGCM. In contrast, the WRF_GCMbc successfully reproduced the observed tri-pole mode of summer precipitation over eastern China. This improvement could be attributed to a better-simulated location of the western North Pacific subtropical high in the WRF_GCMbc after GCM bias correction.

Land use change and forest management effects on soil carbon stocks in the Northeast U.S.

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Abstract

Background

In most regions and ecosystems, soils are the largest terrestrial carbon pool. Their potential vulnerability to climate and land use change, management, and other drivers, along with soils’ ability to mitigate climate change through carbon sequestration, makes them important to carbon balance and management. To date, most studies of soil carbon management have been based at either large or site-specific scales, resulting in either broad generalizations or narrow conclusions, respectively. Advancing the science and practice of soil carbon management requires scientific progress at intermediate scales. Here, we conducted the fifth in a series of ecoregional assessments of the effects of land use change and forest management on soil carbon stocks, this time addressing the Northeast U.S. We used synthesis approaches including (1) meta-analysis of published literature, (2) soil survey and (3) national forest inventory databases to examine overall effects and underlying drivers of deforestation, reforestation, and forest harvesting on soil carbon stocks. The three complementary data sources allowed us to quantify direction, magnitude, and uncertainty in trends.

Results

Our meta-analysis findings revealed regionally consistent declines in soil carbon stocks due to deforestation, whether for agriculture or urban development. Conversely, reforestation led to significant increases in soil C stocks, with variation based on specific geographic factors. Forest harvesting showed no significant effect on soil carbon stocks, regardless of place-based or practice-specific factors. Observational soil survey and national forest inventory data generally supported meta-analytic harvest trends, and provided broader context by revealing the factors that act as baseline controls on soil carbon stocks in this ecoregion of carbon-dense soils. These factors include a range of soil physical, parent material, and topographic controls, with land use and climate factors also playing a role.

Conclusions

Forest harvesting has limited potential to alter forest soil C stocks in either direction, in contrast to the significant changes driven by land use shifts. These findings underscore the importance of understanding soil C changes at intermediate scales, and the need for an all-lands approach to managing soil carbon for climate change mitigation in the Northeast U.S.

Research on the death psychology among Chinese during and after the COVID-19 pandemic

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Abstract

Under the threat of the novel coronavirus, people are compelled to contemplate some ultimate existential questions, such as life and death. This study collected texts related to the death psychology from Sina Weibo, and after data cleaning, a total of 3868 Weibo texts were included. Study 1 employed grounded theory from qualitative research to explore the core categories and evolutionary mechanisms of people's psychology when facing death threats in the context of the pandemic. Study 2 utilized big data mining techniques such as topic mining and semantic network analysis to validate the effectiveness of the death psychology theory developed in qualitative research. The findings demonstrate that within the “Emotion–Cognition–Behavior-Value” framework, the implications of death threats manifest in four aspects: death anxiety, death cognition, coping efficacy, and sense of meaning. As time progresses, the study of death psychology can be segmented into four distinct phases: the tranquil phase prior to lifting pandemic restrictions, the threat phase at lifting pandemic restrictions onset, the coping phase mid-lifting pandemic restrictions, and the reformative phase post-lifting pandemic restrictions. The calculated outcomes of topic mining and semantic network analysis corroborate the coding results and theories derived from the grounded theory. This reaffirms that data mining technology can be a potent tool for validating grounded theory.

The seeds are coming home: a rising movement for Indigenous seed rematriation in the United States

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Abstract

Seed rematriation is a rising movement within greater efforts to improve seed and food sovereignty for Native American communities in the United States. As a feminized reframing of repatriation, rematriation seeks to heal Indigenous relationships with food, seeds, and landscapes. Since first contact, Native agricultural practices have been systematically targeted by colonization, resulting in the diminished biodiversity of cultural gardening systems. Of this vast wealth, many varieties exist today solely under the stewardship of non-Native institutions. Seed rematriation is therefore the process and movement by which Native nations reclaim their cultural seed heritages. Once seeds are returned to the hands and soils of their home communities, Indigenous Nations can reestablish healthy, diverse, and sustainable seed and foodways for generations to come. This article explores the history of the term rematriation within Indigenous sovereignty scholarship as well as its evolving interpretations and applications. Considering how the seed rematriation movement has been shaped by several seed keepers in the Midwest reveals the cultural understandings and significances that underpin this work across many aspects of Indigenous lifeways. The resulting discussion from ethnographic material demonstrates why seed reclamation and seed sovereignty movements in the Midwest uphold Native nationhood through both resurgence and refusal. The Indigenous processes of recognizing and reclaiming seeds work beyond recovering agricultural knowledge to also mend severed kin relationships, rejuvenate cultural knowledge, and reestablish authority over Indigenous food systems.

Populism and the quest for political power: the pitfalls to populist electoral success in Canada

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Abstract

Recent electoral inroads by anti-establishment political parties in Europe and around the world have led to the resurgence of the debate on populism. Within the burgeoning theoretical and analytic interpretations of the surge of populism, competing arguments have been deployed. Economic dislocation and the demographic shift within liberal democratic societies have provided fertile ground for the rise of populism. However, the success of these populist political parties, particularly the radical right populist parties, in utilizing prevailing societal resentment is to a great extent conditional upon a perceived threat to national identity. While the vestiges of political distrust and social and economic indignation can be found in Canadian society, the absence of a historically ingrained strong sense of nationhood, consolidation of multiculturalism, the eclipse of class from national political discourse, and the implausibility of resorting to Anti-Americanism as a mobilizing tactic has made it difficult for both Canadian right and left-populist forces to replicate the success of their international counterparts at the national level.

Aula Verde (tree room) as a link between art and science to raise public awareness of nature-based solutions

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Abstract

Nature-based solutions inherently require a multifaceted perspective that encompasses diverse fields. The aim of this project is to develop more effective nature-based solutions, climate action and environmental awareness by breaking down boundaries between disciplines and fostering a co-creative process. Concepts of ecology and urban forestry were combined with the research on political ecology, environmental humanities, land art, regenerative art, performing art, participatory art, and more-than-human art. This process resulted in the creation of Aula Verde Aniene. It is located in an urban park in Rome and consists of a stand of trees arranged in circles with a specific design to give the perception of being in an outdoor vegetated room. The project activities involved community participation through art performances and citizen science initiatives. Regulating and cultural ecosystem services of Aula Verde were assessed using i-Tree Eco software and citizens’ surveys. Beyond numerical descriptions of ecosystem services, the manuscript introduces shinrin-yoku as a practice to raise awareness of nature. The distinctive approach here described contributed to convey a sense of belonging to the ecosystem to citizens. The project framework and study findings have been developed to formulate policy recommendations and disseminate a format that can be adapted to diverse locations.

Abortion care at 20 weeks and over in Victoria: a thematic analysis of healthcare providers’ experiences

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Abstract

Background

In many countries, abortions at 20 weeks and over for indications other than fetal or maternal medicine are difficult to access due to legal restrictions and limited availability of services. The Abortion and Contraception Service at the Royal Women’s Hospital in Victoria, Australia is the only service in the state that provides this service. The views and experiences of these abortion providers can give insight into the experiences of staff and women and the abortion system accessibility. The aim of this study was to examine health providers’ perceptions and experiences of providing abortion care at 20 weeks and over for indications other than fetal or maternal medicine, as well as enablers and barriers to this care and how quality of care could be improved in one hospital in Victoria, Australia.

Methods

A qualitative study was conducted at the Abortion and Contraception Service at the Royal Women’s Hospital. Participants were recruited by convenience and purposive sampling. Semi-structured interviews were conducted one-on-one with participants either online or in-person. A reflexive thematic analysis was performed.

Results

In total, 17 healthcare providers from medicine, nursing, midwifery, social work and Aboriginal clinical health backgrounds participated in the study. Ultimately, three themes were identified: ‘Being committed to quality care: taking a holistic approach’, ‘Surmounting challenges: being an abortion provider is difficult’, and ‘Meeting external roadblocks: deficiencies in the wider healthcare system’. Participants felt well-supported by their team to provide person-centred and holistic care, while facing the emotional and ethical challenges of their role. The limited abortion workforce capacity in the wider healthcare system was perceived to compromise equitable access to care.

Conclusions

Providers of abortion at 20 weeks and over for non-medicalised indications encounter systemic enablers and barriers to delivering care at personal, service delivery and healthcare levels. There is an urgent need for supportive policies and frameworks to strengthen and support the abortion provider workforce and expand provision of affordable, acceptable and accessible abortions at 20 weeks and over in Victoria and in Australia more broadly.

A systematic review on the qualitative experiences of people living with lung cancer in rural areas

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Abstract

Purpose

To synthesize the qualitative literature exploring the experiences of people living with lung cancer in rural areas.

Methods

Searches were performed in MEDLINE, CINAHL, and PsycINFO. Articles were screened independently by two reviewers against pre-determined eligibility criteria. Data were synthesized using Thomas and Harden’s framework for the thematic synthesis of qualitative research. The CASP qualitative checklist was used for quality assessment and the review was reported in accordance with the ENTREQ and PRISMA checklists.

Results

Nine articles were included, from which five themes were identified: (1) diagnosis and treatment pathways, (2) travel and financial burden, (3) communication and information, (4) experiences of interacting with healthcare professionals, (5) symptoms and health-seeking behaviors. Lung cancer diagnosis was unexpected for some with several reporting treatment delays and long wait times regarding diagnosis and treatment. Accessing treatment was perceived as challenging and time-consuming due to distance and financial stress. Inadequate communication of information from healthcare professionals was a common concern expressed by rural people living with lung cancer who also conveyed dissatisfaction with their healthcare professionals. Some were reluctant to seek help due to geographical distance and sociocultural factors whilst others found it challenging to identify symptoms due to comorbidities.

Conclusions

This review provides a deeper understanding of the challenges faced by people with lung cancer in rural settings, through which future researchers can begin to develop tailored support to address the existing disparities that affect this population.

Regulatory institutional misalignment and cross-border acquisitions: evidence from an emerging-market country

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Abstract

Do anticorruption efforts affect a country’s investment appeal? Business investment depends on a stable and predictable institutional environment, but meaningful control of corruption typically requires a radical change in the institutional system that has enabled it. This underscores the need for a deeper understanding of how anticorruption efforts can affect the enforcing country’s institutional system on which investment relies. Synthesizing the concept of institutional complementarity and the literature on different modes of anticorruption enforcement, we propose that campaign-style anticorruption enforcement in emerging-market countries can produce “regulatory institutional misalignment,” defined as a situation in which government agencies continue to monopolize critical resources while the exercise of bureaucratic discretion essential to achieving effective resource allocation diminishes substantially. We theorize how such institutional misalignment can harm domestic business environments and drive emerging-market firms to engage more actively in cross-border acquisitions (CBAs). Our hypotheses derived from the regulatory institutional misalignment perspective on CBAs are supported by empirical analyses using data from a sample of privately controlled firms during China’s unprecedented anticorruption campaign launched in late 2012. We also discuss this study’s contributions to the IB literature on institutional complementarity, CBAs by emerging-market enterprises, and anticorruption efforts’ impact on international business.